如何自定义实现类似c++ printf的功能

要在其他编程语言中实现类似C++ printf 的功能，您可以使用字符串格式化和变量插值

1. Python:

def custom_printf(format_string, *args):
    print(format_string % args)

custom_printf("Hello, %s! You are %d years old.", "Alice", 30)

2. Java:

public class CustomPrintf {
    public static void main(String[] args) {
        customPrintf("Hello, %s! You are %d years old.", "Alice", 30);
    }

    public static void customPrintf(String format, Object... args) {
        System.out.printf(format, args);
    }
}

3. JavaScript (Node.js):

function customPrintf(format, ...args) {
    console.log(format.replace(/%[sd]/g, (match) => {
        const value = args.shift();
        return match === '%s' ? value : Number(value);
    }));
}

customPrintf("Hello, %s! You are %d years old.", "Alice", 30);

4. C#:

using System;

class Program
{
    static void Main()
    {
        CustomPrintf("Hello, {0}! You are {1} years old.", "Alice", 30);
    }

    static void CustomPrintf(string format, params object[] args)
    {
        Console.WriteLine(format, args);
    }
}

这些示例展示了如何在不同编程语言中实现类似C++ printf 的功能。请注意，每种语言都有自己的特定方法来处理字符串格式化和变量插值。